While several studies have documented the large-scale, seasonal movements of horseshoe crabs, little is known about their fine-scale, daily movement patterns. In this study we used a fixed array ultrasonic telemetry s...While several studies have documented the large-scale, seasonal movements of horseshoe crabs, little is known about their fine-scale, daily movement patterns. In this study we used a fixed array ultrasonic telemetry system to track the movements of 12 male and 16 female horseshoe crabs in the Great Bay estuary, New Hampshire. Data were obtained during the mating season, as well as during the remainder of the summer and fall, in the years 2005-2008. During the mating season animals were often, but not always, active during the high tides when they were approaching and leaving the spawning beaches. On average, both males and females approached mating beaches during 33% of the high tides they experienced and they most often made the tran- sition from being inactive to active during the last two hours of an incoming tide. From April-October horseshoe crabs were significantly more active during high tide periods vs low tide periods, with no clear preference for diurnal vs nocturnal activity. After the mating season ended horseshoe crabs continued to move into shallower water at high tide and then return to deeper water at low tide. Observations by SCUBA divers suggest that during these excursions into the mudflats horseshoe crabs were digging pits in the sediment while foraging for food. Thus, the tidal rhythm of activity that has been so well documented during the mating season probably persists into the fall, and primarily involves foraging activities展开更多
The four-seasonal movement is the general movement of the universe. Galaxies, living beings, society, man-made worlds and all substances have or take part in the four-seasonal movement. There are transverse four-seaso...The four-seasonal movement is the general movement of the universe. Galaxies, living beings, society, man-made worlds and all substances have or take part in the four-seasonal movement. There are transverse four-seasonal movement and longitudinal four-seasonal movement. The former is the breathing movement. All substances have the function of breathing. Breathing involves living beings, celestial bodies, society and man-made systems and living beings of different levels have different ways of breathing. The longitudinal four-seasonal movement of living beings is controlled by genes. The four-seasonal movement is confined. Life originates in seeds and seeds are generated in the four-seasonal movement. Thoughts, ideas, designs and methods are the seeds of celestial bodies, society and man-made worlds. Just like living beings, galaxies, and society also have reproductive function. Reproduction has three major means： self-generation, generation by augmentation and generation by transformation. The reproduction of living beings is self-generation while the reproduction of the solar system and other galaxies is generation by augmentation. Man-made objects, society and galaxies are formed with automatic organization of thoughts, thus called generation by transformation. The solar system and the earth have reproduction function. Living beings began with the combined action of the earth, the solar system and the universe. Life forms of the universe include dominant life and recessive life. Different forms of life transform continuously.展开更多
This paper argues that ritual is not only restricted to religious activities, but can also be ethological, sociological, and ecological in nature. The artistic, stylistic, and functional characteristics of one particu...This paper argues that ritual is not only restricted to religious activities, but can also be ethological, sociological, and ecological in nature. The artistic, stylistic, and functional characteristics of one particular festival of the Bamana in Mali to celebrate the harvest and new planting season will be analyzed. This festival primarily takes on the form of animal masquerades in which masks, puppets, drumming, singing, and dancing are blended into a ritualistic celebration of a certain cultural identity. The Bamana culture has lost religion as a marker, as Islam is now the dominant religion in Mali, but traditional social relationships and morals among the Bamana as a patriarchal society are concretized and objectified by their animal masquerades. Apart from being a seasonal festival, events from the past are commemorated; customary gender roles are defined; and some fundamental and complex social concepts are reinforced by a performance mode which relies on a collective memory and oral transmission.展开更多
基金supported by NSF IOB 0517229 and NSF IOS 0920342 grants to WHW Ⅲ and CCC
文摘While several studies have documented the large-scale, seasonal movements of horseshoe crabs, little is known about their fine-scale, daily movement patterns. In this study we used a fixed array ultrasonic telemetry system to track the movements of 12 male and 16 female horseshoe crabs in the Great Bay estuary, New Hampshire. Data were obtained during the mating season, as well as during the remainder of the summer and fall, in the years 2005-2008. During the mating season animals were often, but not always, active during the high tides when they were approaching and leaving the spawning beaches. On average, both males and females approached mating beaches during 33% of the high tides they experienced and they most often made the tran- sition from being inactive to active during the last two hours of an incoming tide. From April-October horseshoe crabs were significantly more active during high tide periods vs low tide periods, with no clear preference for diurnal vs nocturnal activity. After the mating season ended horseshoe crabs continued to move into shallower water at high tide and then return to deeper water at low tide. Observations by SCUBA divers suggest that during these excursions into the mudflats horseshoe crabs were digging pits in the sediment while foraging for food. Thus, the tidal rhythm of activity that has been so well documented during the mating season probably persists into the fall, and primarily involves foraging activities
文摘The four-seasonal movement is the general movement of the universe. Galaxies, living beings, society, man-made worlds and all substances have or take part in the four-seasonal movement. There are transverse four-seasonal movement and longitudinal four-seasonal movement. The former is the breathing movement. All substances have the function of breathing. Breathing involves living beings, celestial bodies, society and man-made systems and living beings of different levels have different ways of breathing. The longitudinal four-seasonal movement of living beings is controlled by genes. The four-seasonal movement is confined. Life originates in seeds and seeds are generated in the four-seasonal movement. Thoughts, ideas, designs and methods are the seeds of celestial bodies, society and man-made worlds. Just like living beings, galaxies, and society also have reproductive function. Reproduction has three major means： self-generation, generation by augmentation and generation by transformation. The reproduction of living beings is self-generation while the reproduction of the solar system and other galaxies is generation by augmentation. Man-made objects, society and galaxies are formed with automatic organization of thoughts, thus called generation by transformation. The solar system and the earth have reproduction function. Living beings began with the combined action of the earth, the solar system and the universe. Life forms of the universe include dominant life and recessive life. Different forms of life transform continuously.
文摘This paper argues that ritual is not only restricted to religious activities, but can also be ethological, sociological, and ecological in nature. The artistic, stylistic, and functional characteristics of one particular festival of the Bamana in Mali to celebrate the harvest and new planting season will be analyzed. This festival primarily takes on the form of animal masquerades in which masks, puppets, drumming, singing, and dancing are blended into a ritualistic celebration of a certain cultural identity. The Bamana culture has lost religion as a marker, as Islam is now the dominant religion in Mali, but traditional social relationships and morals among the Bamana as a patriarchal society are concretized and objectified by their animal masquerades. Apart from being a seasonal festival, events from the past are commemorated; customary gender roles are defined; and some fundamental and complex social concepts are reinforced by a performance mode which relies on a collective memory and oral transmission.
